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Sea to Summit · Sleeping pad

UltraLight 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

3.1verifiedValue-level ASTM-qualified
Evidence for R-value
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    ASTM standard R-Value of 3.1
    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: ASTM standard R-Value of 3.1
    Open manufacturer evidence

Weight

480 gverified
Evidence for Weight
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular: 16.9 oz / 480g
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Dimensions

72 x 21.5 in / 183 x 55 cmverified
Evidence for Dimensions
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular 72 x 21.5 in / 183 x 55 cm
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Thickness

5 cmverified
Evidence for Thickness
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    2 in / 5 cm (all sizes)
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Packed size

5 x 9.5 in / 12.5 x 24 cmverified
Evidence for Packed size
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular 5 x 9.5 in
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Reference price

Ambiguous evidenceambiguousNot available for direct comparison
Evidence for Reference price
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    $159.00 struck through / $79.50 used price
    Normalized by: direct. Scope: noncanonical observation (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

3.1

1 lower R-value than typical

Typical R-value
4.1
Products compared
5 current pads

Lower R-value than 4 of the 5 compared pads.

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

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 UltraLight Insulated

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
Ambiguous evidenceambiguousNot available for direct comparison
R-value
3.1verified
Weight
480 gverified
Dimensions
72 x 21.5 in / 183 x 55 cmverified
Thickness
5 cmverified
Packed size
5 x 9.5 in / 12.5 x 24 cmverified
Pad type
insulated airverified
Insulation
Exkin Platinum + Thermoliteverified
Fabric
30D / 40D nylon with TPU laminationverified
Valve
Not publishednot foundNot available for direct comparison
Sizes available
X-Small, Small, Regular, Largeverified

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

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

Reference price

Ambiguous evidence · ambiguous

Evidence for source record — Reference price
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    $159.00 struck through / $79.50 used price
    Normalized by: direct. Scope: noncanonical observation (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

R-value

3.1 · verified

Evidence for source record — R-value
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    ASTM standard R-Value of 3.1
    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: ASTM standard R-Value of 3.1
    Open manufacturer evidence

Weight

480 g · verified

Evidence for source record — Weight
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular: 16.9 oz / 480g
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Dimensions

72 x 21.5 in / 183 x 55 cm · verified

Evidence for source record — Dimensions
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular 72 x 21.5 in / 183 x 55 cm
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Thickness

5 cm · verified

Evidence for source record — Thickness
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    2 in / 5 cm (all sizes)
    Normalized by: direct. Scope: canonical variant (Regular).
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Packed size

5 x 9.5 in / 12.5 x 24 cm · verified

Evidence for source record — Packed size
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Regular 5 x 9.5 in
    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 design
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Insulation

Exkin Platinum + Thermolite · verified

Evidence for source record — Insulation
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    Exkin Platinum® fabric and Thermolite® insulation
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Fabric

30D / 40D nylon with TPU lamination · verified

Evidence for source record — Fabric
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    30D / 40D nylon face fabric with TPU lamination
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    Open manufacturer evidence

Valve

Not published · not found

Evidence for source record — Valve
  1. unknown · observed 2026-08-15 · source retrieved 2026-08-15
    No public manufacturer wording recorded.
    Normalized by: direct. Scope: model wide.
    Comparability: Not applicable to this field.
    No public HTTPS source link for this observation.

Sizes available

X-Small, Small, Regular, Large · verified

Evidence for source record — Sizes available
  1. manufacturer pdp · observed 2026-08-15 · source retrieved 2026-08-15
    four 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 lifecycle delisted
Recorded variant lifecycle

Variant lifecycle differs within this model; one variant’s measurements are not transferred to another.

Source coverage
3 source records; retrieval dates 2026-08-15, 2026-08-16
Price evidence
unavailable; conservative applicable date 2026-08-15
Probable successor candidate
Ultralight XR Insulated. Probable successor candidate only. This is not a confirmed replacement or equivalence; specifications are not inherited, and the manufacturer evidence may not explicitly call it a successor. Open manufacturer evidence