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Sea to Summit · Sleeping pad

Ether Light XR Insulated

Manufacturer specifications shown with their field-level evidence state and reference-variant scope.

Supported public fields

Key specifications

State and comparison qualification travel with each value. Open evidence to inspect the manufacturer wording, scope, and dates.

R-value

4.1verifiedValue-level ASTM-qualified
Evidence for R-value
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Extended 3 season capable, ASTM-tested R-Value of 4.1
    Normalized by: direct. Scope: model wide.
    Comparability: Value-level ASTM-qualified — ASTM F3340, edition unspecified; attribution value-level; evidence scope product_or_value.
    Manufacturer qualification wording: Extended 3 season capable, ASTM-tested R-Value of 4.1
    Open manufacturer evidence

Weight

470 gverified
Evidence for Weight
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular: Weight 470 g / 16.6 oz; Packed Weight 525 g
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Dimensions

183 x 55 x 10 cm / 72 x 22 x 4 inverified
Evidence for Dimensions
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular 183 × 55 × 10 cm
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Thickness

10 cmverified
Evidence for Thickness
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    10 cm | 3.94 in
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Packed size

20.5 x 11 x 11 cm / 8 x 4 x 4 inverified
Evidence for Packed size
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular packed size
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Reference price

$199.00verified
Evidence for Reference price
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Small $189; Regular $199; RRW $239; Large $219; LR $259 (per-variant from product JSON; page displays $189 default)
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Across the Sleeping Pad Index

Where it sits in the market

Each comparison answers a buying question in plain English, names the typical value, and shows how many current pads were compared.

Across the Sleeping Pad Index

R-value

4.1

Matches the typical R-value

Typical R-value
4.1
Products compared
5 current pads

2 of the 5 compared pads are lower and 2 are higher.

Based on 5 current sleeping pads with qualifying R-value data.

How this comparison works

“Typical” means the median: the middle value after the compared pads are ordered from lowest to highest.

A pad is included when its current R-value has product/value evidence that explicitly supports ASTM F3340 and is not a manufacturer estimate. Products without data that meets this rule are not included.

Pads in this comparison

  • Sea to Summit UltraLight Insulated, Regular: 3.1
  • Exped Ultra 3R, Rectangular: 3.2
  • Sea to Summit Ether Light XR Insulated, Regular: 4.1
  • REI Co-op Traverse Insulated Air Pad, Medium: 4.3
  • REI Co-op Helix Insulated Air Sleeping Pad, Medium: 4.9

Across the Sleeping Pad Index

Weight

470 g

Matches the typical weight

Typical weight
470 g
Products compared
9 current pads

4 of the 9 compared pads are lighter and 4 are heavier.

Based on 9 current sleeping pads with comparable weight data.

How this comparison works

“Typical” means the median: the middle value after the compared pads are ordered from lowest to highest.

A pad is included when its current reference-variant weight is published and available for comparison under OutdoorSpecs rules. Products without data that meets this rule are not included.

Pads in this comparison

  • Gossamer Gear Thinlight Foam Pad 1/8", Rolled: 76 g
  • Therm-a-Rest NeoAir XLite NXT, Regular: 370 g
  • Therm-a-Rest Z Lite Sol, Regular: 410 g
  • Therm-a-Rest NeoAir XTherm NXT, Regular: 440 g
  • Sea to Summit Ether Light XR Insulated, Regular: 470 g
  • Klymit Static V2, One size: 471 g
  • REI Co-op Helix Insulated Air Sleeping Pad, Medium: 595 g
  • REI Co-op Traverse Insulated Air Pad, Medium: 595 g
  • Klymit Insulated Static V, One size: 675 g

Side-by-side evidence

Compare this product

Choose up to three more records. Differences are shown only where the existing field capability and variant rules permit comparison.

Start with Ether Light XR Insulated

Supplementary pilot observation

Owner feedback

A customer rating reported on the brand’s own exact-model product page. It never changes ranking, filtering, capabilities, or publication state.

Complete public field set

Full specifications

Every public field for this record is shown. Pending, missing, ambiguous, conflicting, and estimated states are kept explicit.

Reference price
$199.00verified
From price
189verifiedNot available for direct comparison
R-value
4.1verified
Manufacturer season claim
Extended 3 season capableverified
Weight
470 gverified
Dimensions
183 x 55 x 10 cm / 72 x 22 x 4 inverified
Thickness
10 cmverified
Packed size
20.5 x 11 x 11 cm / 8 x 4 x 4 inverified
Pad type
insulated airverified
Insulation
ThermalCore + suspended TRM layerverified
Fabric
100% Nylon (denier not published)verified
Valve
XPRESS valve (TPU)verified
Sizes available
Small, Regular, Regular Rectangular Wide, Large, Large Rectangularverified

Canonical reference

What these specifications mean

Short definitions here lead to one maintained explanation instead of repeating long guidance on every product.

R-values explainedWhat the reported number measures—and what it does not.ASTM F3340 explainedWhy product/value evidence scope matters for cross-brand comparison.How to compare sleeping padsVariant, weight, dimensions, insulation, and evidence state.Missing, conflicting, and estimated specsWhy OutdoorSpecs does not infer a clean number.

Field-level provenance

Evidence and sources

1 source record support this public record. Expanded evidence preserves wording, observation date, retrieval date, transformation, scope, and comparability.

Reference price

$199.00 · verified

Evidence for source record — Reference price
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Small $189; Regular $199; RRW $239; Large $219; LR $259 (per-variant from product JSON; page displays $189 default)
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

From price

189 · verified

Evidence for source record — From price
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Small $189
    Normalized by: direct. Scope: noncanonical observation (Small).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

R-value

4.1 · verified

Evidence for source record — R-value
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Extended 3 season capable, ASTM-tested R-Value of 4.1
    Normalized by: direct. Scope: model wide.
    Comparability: Value-level ASTM-qualified — ASTM F3340, edition unspecified; attribution value-level; evidence scope product_or_value.
    Manufacturer qualification wording: Extended 3 season capable, ASTM-tested R-Value of 4.1
    Open manufacturer evidence

Manufacturer season claim

Extended 3 season capable · verified

Evidence for source record — Manufacturer season claim
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Extended 3 season capable, ASTM-tested R-Value of 4.1
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Weight

470 g · verified

Evidence for source record — Weight
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular: Weight 470 g / 16.6 oz; Packed Weight 525 g
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Dimensions

183 x 55 x 10 cm / 72 x 22 x 4 in · verified

Evidence for source record — Dimensions
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular 183 × 55 × 10 cm
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Thickness

10 cm · verified

Evidence for source record — Thickness
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    10 cm | 3.94 in
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Packed size

20.5 x 11 x 11 cm / 8 x 4 x 4 in · verified

Evidence for source record — Packed size
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular packed size
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Pad type

insulated air · verified

Evidence for source record — Pad type
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Air Sprung Cell; tapered or rectangular
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Insulation

ThermalCore + suspended TRM layer · verified

Evidence for source record — Insulation
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    ThermalCore insulation with a suspended TRM layer
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Fabric

100% Nylon (denier not published) · verified

Evidence for source record — Fabric
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Mat: 100% Nylon
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Valve

XPRESS valve (TPU) · verified

Evidence for source record — Valve
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    XPRESS valve (100% TPU)
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Sizes available

Small, Regular, Regular Rectangular Wide, Large, Large Rectangular · verified

Evidence for source record — Sizes available
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    five sizes
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Entity and record lifecycle

Product history

Lifecycle and variant differences stay separate from specifications. Candidate successor relationships never transfer values.

Model lifecycle
current
Canonical reference
Reference variant Regular has no separately recorded lifecycle
Source coverage
1 source record; retrieval dates 2026-08-15
Price evidence
current; conservative applicable date 2026-08-15