Sea to Summit Aeros Ultralight Pillow Review

What’s in the box

An inflatable pillow with a soft 20D stretch polyester knit face over a quiet TPU air bladder, with curved baffles inside and a scalloped bottom edge. It has Sea to Summit’s multi-function valve, works with Pillow Lock and comes with a small Ultra-Sil stuff sack. It comes in Aqua and Grey.

Quick Specs

Newer versionSea to Summit Aeros Ultralight Pillow (2026)Nicer recycled fabric and a mini Xpress valve that fills it in a few pumps.Read the 2026 review →

Curved baffles that hold your head

The shape is what makes it work. The curved baffles inside form a slight hollow that holds your head, so it doesn’t roll off the side like it does on a flat rectangular pillow. The scalloped bottom edge sits around your shoulders and keeps the pillow centred under your neck, on your back or your side. It even works as neck support sitting up in a camp chair.

Up in two or three breaths

It goes up in two or three breaths and flattens just as fast when you pack up. The valve sits in the middle of the underside, so you don’t feel it against your face or the ground. A light press lets out a little air at a time, so you can set the height and firmness the way you like.

Soft and quiet, but handle with care

The 20D stretch knit is soft against your skin, and the TPU bladder underneath is quiet, with no crinkling when you change position. The whole pillow is RF welded: the layers are melted together, which gives strong, airtight seams. The catch is the thin face fabric. It needs gentle handling, so keep it away from sharp sticks and Velcro.

Tiny in its sack, locked to the mat

Deflated, it rolls into its Ultra-Sil stuff sack at 5.5 × 7.5 cm, so it fits in a pocket of any pack. Underneath is Pillow Lock: hook-and-loop patches that fix it to a compatible Sea to Summit sleeping mat, so it stays under your head when you roll over. Without it, place it carefully, because a pillow this light moves easily on a slippery mat.

Which Sea to Summit pillow?

We’ve also reviewed the Aeros Premium and the Aeros Down. All three Aeros pillows have the same valve and Pillow Lock. The Premium adds a brushed knit face over a synthetic fill and is the comfiest of the three, the Down has a duck down top, and the Ultralight skips the fill to be the lightest by far. The Foam Core is the odd one out: foam instead of air, so it feels most like a pillow from home, but at 474 g for the Deluxe it’s one for the car.

	This oneAeros Ultralight	DownAeros Down→	PlushAeros Premium→	FoamFoam Core (Deluxe)→
Type	Inflatable	Inflatable	Inflatable	Foam
Top	Stretch knit	Duck down	Brushed knit, Synthetic fill	Foam core & fill
Shape	Curved	Rectangular	Curved	Rectangular
Face fabric	20D knit	10D	50D knit	50D knit
Weight	60 g	91 g	114 g	474 g
Price paid	$55	$120	$75	$55
Our score	8.9	8.9	9.3	9.4

Conclusion: Sea to Summit Aeros Ultralight Pillow (Regular)

The Sea to Summit Aeros Ultralight Pillow gives you a properly shaped pillow for 60 g and an egg-sized pack. The curved baffles and scalloped base hold your head and neck, the valve makes it quick to set up and fine-tune, and Pillow Lock keeps it on the mat. It’s pricey for its size, the thin 20D fabric needs care, and without Pillow Lock it needs placing carefully, but when you carry your gear it’s hard to beat.