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Pillow Lock™ System
Technical Features

Pillow Lock™ System

The Pillow Lock™ System comprises of self-adhesive hook-and-loop patches which are supplied with all Sea to Summit sleeping mats (as of Spring 2019),

Attached to your sleeping mat, these patches secure your pillow and prevent it slipping – yet they will not snag on clothing or other lightweight fabrics.

All Sea to Summit Pillows (as of Spring 2019) are compatible with this system. Existing pillows can be made Pillow Lock™ compatible by adding an Aeros Pillow Case.

32 thoughts on “Pillow Lock™ System

  1. avatar Darryl Ward says:

    I recently purchased a ComfortLight mat. And one of my reasons for choosing an STS was the Pillow Lock system. But I did not realise this innovation was only adopted this year. If it turns out my mat was manufactured before this was introduced (I will need to look at it when I get home tonight), is there any way I can retro-fit it?

  2. avatar Baz says:

    G’Day Brigit

    Thanks for your question. The PillowLock hook-and-loop patches will only work with 2019 Aeros Pillows. If you email us at and let us know your mailing address, we would be happy to provide you with a set of the hook-and-loop patches free of charge – but to make this work with your current pillow, you would need to purchase a Pillow Case.
    As a PCT Thru-Hiker, you will want to save as much weight as possible, so you may opt to go with your current mat plus the free hook-and-loop patches and purchase a 2019 pillow…

    Please let us know if we can assist you further.


    The Sea to Summit Team

  3. avatar Brigit says:

    Purchased the Ultralight Insulated pad and Aeros pillow last year :( This is for my 2020 PCT hike. Can you help making this work without me having to purchase everything again? Thanks!

  4. avatar Baz says:

    G’Day Frank,

    Thanks for bringing this to our attention. We have called the Bellingham REI store to explain the hook-and-loop patches supplied with all Sea to Summit sleeping mats and to let them know how these patches locate onto the sleeping mats to secure 2019 Aeros Pillows.

    Please email us at and let us know your full shipping address – we’ll be happy to send you a set of the hook-and-loop patches with instructions for securing them.

    The Sea to Summit Team

  5. avatar Frank James says:

    I just bought comfort light insulated (green) sleeping pad and an Aeros Premium pillow. The staff at REI Bellingham did not know how they attached together and tried to make the valves fit into one another and said that was how it was suppose to work. When I got home it was clear that that was NOT how it worked and then I looked online and there should have been “hook and loop” fasteners with the pad but there were not. What is the issue does this pad not come with them? Did someone in the store remove them from the packaging? I appeared not to have been opened and the patch kit was with the informational material. Thanks for your insights.


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