Packable down jackets are light and comfy to sleep on. And good emergency layer if it's colder than you think. Alternatively, my gf has an Exped air pillow that's tiny and rather decent.
I pinched the stuff sack off an old sleeping bag (vango 100 i think) which is fleece lined , serves a double purpose as the stuff sack for my down bag and inside out stuff with a down jacket in it as a pillow.
Any good recommendations for pillows? Cant do clothes in a dry bag anymore.