Brandwave

Sea to Summit vs Therm-a-Rest:Which is more popular?

In September 2026, Sea to Summit had more branded searches than Therm-a-Rest among sleeping bag brands in New Zealand. Sea to Summit had about 720 branded searches, while Therm-a-Rest had 320. Sea to Summit made up 0.65% of all sleeping bag brand searches we track, and Therm-a-Rest accounted for 0.29%. When we asked ChatGPT and Google AI Overviews about sleeping bag brands, Sea to Summit appeared in all three answers and Therm-a-Rest in none.

Among sleeping bag brands in New Zealand in September 2026

Who do people search for more?

Sea to Summit, about 2 searches for every 1 for Therm-a-Rest

Sea to Summit 720 searchesTherm-a-Rest 320 searches

Who does AI mention more?

Sea to Summit, mentioned in every answer we collected

Sea to Summit in 3 of 3Therm-a-Rest in 0 of 3

Who does AI recommend more?

Sea to Summit, the only one of the two named

Sea to Summit first in 3Therm-a-Rest never named

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Top sleeping bag brands in ChatGPT and Google AI Overviews

In three ChatGPT questions, Sea to Summit appeared in all three answers. Therm-a-Rest did not appear in any of the three answers.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Macpac1st
  2. Sea to Summit2nd
  3. Kathmandu3rd
  4. One Planet4th
  5. Rab4th
  6. Therm-a-Rest–
  7. Exped–
  8. Big Agnes–

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Macpac3 of 3Named in 3 of 3 ChatGPT answers
  • Sea to Summit3 of 3Named in 3 of 3 ChatGPT answers
  • Kathmandu2 of 3Named in 2 of 3 ChatGPT answers
  • One Planet2 of 3Named in 2 of 3 ChatGPT answers
  • Rab1 of 3Named in 1 of 3 ChatGPT answers
  • Therm-a-Rest0 of 3Named in 0 of 3 ChatGPT answers
  • Exped0 of 3Named in 0 of 3 ChatGPT answers
  • Big Agnes0 of 3Named in 0 of 3 ChatGPT answers

See every answer about sleeping bag brands

3 answers

  • Asked ChatGPT

    “Which sleeping bag brand should I buy in New Zealand?”

    1. 1Kathmandu
    2. 2Macpac
    3. 3Sea to Summit

  • Asked ChatGPT

    “What are the best sleeping bag brands in New Zealand?”

    1. 1Macpac
    2. 2Sea to Summit
    3. 3Rab
    4. 4One Planet

  • Asked ChatGPT

    “What's the best sleeping bag brand in New Zealand for tramping and camping?”

    1. 1Macpac
    2. 2Sea to Summit
    3. 3Kathmandu
    4. 4One Planet

  • Searched Google, AI Overview

    “best sleeping bag nz”

    Google showed no AI Overview for this search.

  • Searched Google, AI Overview

    “lightweight sleeping bag nz”

    Google showed no AI Overview for this search.

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in New Zealand on October 19, 2026.

Is Sea to Summit or Therm-a-Rest more popular in search?

This chart shows how often people search Google for Sea to Summit and Therm-a-Rest by name. Each line represents a brand's share of searches for all eight sleeping bag brands we track, month by month, from searches in New Zealand.

Sea to Summit and Therm-a-Rest among sleeping bag brands in New Zealand, by month

Share of searches by month for Sea to Summit, Therm-a-Rest. The figures are in the table below the chart.

View monthly share of searches table
MonthKathmanduMacpacSea to SummitTherm-a-RestExpedOne PlanetRabBig Agnes
Oct 202547.7%50.4%0.73%0.4%0.23%0.17%0.14%0.17%
Nov 202552.5%45.9%0.62%0.37%0.26%0.16%0.11%0.16%
Dec 202548.7%49.9%0.54%0.31%0.21%0.11%0.11%0.11%
Jan 202648.6%49.6%0.65%0.39%0.31%0.17%0.14%0.17%
Feb 202647.6%50.3%0.81%0.48%0.31%0.21%0.17%0.14%
Mar 202647.9%50.2%0.68%0.36%0.29%0.27%0.18%0.14%
Apr 202652.2%46.3%0.54%0.26%0.23%0.13%0.2%0.1%
May 202648.4%50.1%0.59%0.22%0.21%0.17%0.21%0.09%
Jun 202649.3%49.5%0.41%0.2%0.18%0.15%0.15%0.08%
Jul 202654%44.7%0.44%0.17%0.17%0.2%0.16%0.07%
Aug 202652.6%45.9%0.54%0.26%0.23%0.2%0.2%0.11%
Sep 202652.1%46.3%0.65%0.29%0.23%0.15%0.15%0.1%

How has the Sea to Summit and Therm-a-Rest comparison changed over the last 12 months?

3 findings

How did search popularity change for New Zealand sleeping bag brands in September 2026?

2 changes

  1. Estimated monthly branded searches for Therm-a-Rest in New Zealand fell 33.3% over 12 measured months, from 480 to 320 in September 2026.

  2. Estimated monthly branded searches for Sea to Summit in New Zealand fell 18.2% over 12 measured months, from 880 to 720 in September 2026.

How are branded searches counted?

3 search terms

Brandwave collects information about searches that people make online using Sea to Summit’s and Therm-a-Rest’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Sea to Summit

1 branded search term

  • sea to summit

Therm-a-Rest

2 branded search terms

  • therm-a-rest
  • thermarest sleeping pad

How the Brand Demand Index is measured

Other head-to-heads among sleeping bag brands

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