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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.

22 thoughts on “Pillow Lock™ System

  1. avatar Baz says:

    G’Day, Luke –

    Thanks for reaching out to us.

    Any Sea to Summit pillow with the Pillow Lock™ symbol printed on the base can be attached to the Pillow Lock patches supplied with Sea to Summit Air and Self-Inflating mats. We don’t sell the patches separately, but if you have an older Sea to Summit sleeping mat, shoot us an email at with an image of your mat and your mailing address and we’ll get a set of patches to you (and if you don’t own a Sea to Summit sleeping mat, now may be the perfect time to upgrade to one…)


    The Sea to Summit team

  2. avatar Luke Pearsall says:

    I bought a STS Aeros Ultralight Pillow this past week on the sale. I’m assuming it is the right model to be attached with Pillow Locks. Is there any way to purchase them separately to work with my existing sleeping pad? Thanks so much!

  3. avatar Baz says:

    G’Day Mihail,

    Here’s how to tell if your Aeros Pillow is compatible with the Pillow Lock™ system: if it has the Pillow Lock™ symbol (see image at the top of this blog post) printed on it, it will work with the Pillow Lock adhesive patches. If it does not have this symbol, you will need to purchase a Sea to Summit Pillowcase for your pillow to make it Pillow Lock compatible. (The Sea to Summit blog is maintained from our offices in North America. It’s not possible for us to know what products a European discount reseller may be selling – even though you purchased the pillow in 2019, it may be a pre-2019 model)

    As far as the spacing of the self-adhesive patches is concerned, the patch locators printed on the Etherlight mat will work perfectly with an Aeros Ultralight Large pillow if it is Pillow Lock compatible.

    If you have any questions on the above, please email us at – let us know where you are located (including city and country); we will be happy to assist you further


    The Sea to Summit Team

  4. avatar Baz says:

    G’Day Darryl,

    Congratulations on purchasing a Comfort Light mat! The Pillow Lock™ self-adhesive patches should be in the packaging for your sleeping mat. The patches will secure any 2019 Aeros Pillow to the mat. If your mat was supplied without the self-adhesive patches, please email us at – let us know your shipping address in North America and attach a copy of your receipt for the mat. We’ll be happy to mail you a set of Pillow Lock™ patches. If your Aeros Pillow is pre-2019, you will need the optional Pillowcase to make the Pillow Lock™ system work. If you have any questions on the above, send us an email to the info@ address and we’ll provide answers!


    The Sea to Summit Team

  5. avatar Mihail Samuilenkov says:

    Recently bought Ether Light XT Insulated mat Regular and it looks like pillow lock system on it is not really compatible with my Aeros Ultralight Pillow Large (not sure how to check the model year but definitely bought it in 2019 from The surfaces pillow/patches do not match because hook-and-loop patches positioning seems to be to narrow for the pillow in size large.

    Now my question is there any way to use Aeros pillow Large with Ether Light XT Insulated mat Regular or I have to buy the pillow in regular size?
    As an idea, I guess positioning the patches on the mat wider than suggested by hint pictures would help but since patches are already applied I am not really sure I can use same them twice – remove and apply again but wider.

    Thanks in advance,


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