I (37f) need very different sleeping conditions from my husband (38m), but sleeping together is important to him.

I struggle to get comfortable on a bed. I usually need to be in positions that are only possible to achieve with the support of the back and arm of a sofa.

I also need an unusually cool environment in order to not be uncomfortably hot. It can be 40f (7.2c) outside, the heat is off, and I'm opening windows because I'm boiling hot.

My husband (together on and off for ~19 years, living together on and off for ~16 years, married for 9.5 years) of course, is a normal person who sleeps fine in a bed and isn't comfortable under 70f (21.1c).

I usually sleep on the living room sofa while my husband sleeps in our bed. In the winter, I keep the front door, which when I sleep on the couch is about 2 feet from my head, open a crack at outdoor temperatures as low as -4f (-20c) If I close it I'm just too damn hot. In the summer I'm on the couch directly in front of our living room window AC unit, which is our only AC. It doesn't really reach the bedroom but the bedroom ceiling fan seems to be enough for my husband.

Edit because I forgot to mention: I have ADHD and anxiety, and I fall asleep best if I read or watch tv right up until I'm falling asleep, because it stops my mind from racing. If I try to sleep by just lying in the dark my mind just keeps racing, keeping me awake, and I sometimes have a panic attack. He, on the other hand, needs it dark and quiet.

I love cuddling with him, it's literally my favorite activity, but I just can't sleep with him.

It hurts his feelings. He puts a lot of value on me being with him while he sleeps. I also admit it does decrease our opportunities to have sex.

He's always trying to get me to sleep in the bed. He recently bought me some really nice new pillows out of the blue, and confirmed it was an attempt to get me to sleep in the bed. I did for a couple of nights, just to please him, but in the middle of the night last night I just couldn't take it anymore and moved back to the couch.

This morning when he got up he came to me and expressed his displeasure at my moving to the couch.

Nothing I say can convince him that my sleeping on the couch isn't about him. I understand that it does seem obvious that if your spouse is sleeping on the couch there are problems in your marriage, and that he probably thinks I'm just making excuses, but I really just cannot sleep like that. You might think he should be used to it by now, but there have been stretches of time over the course of our relationship when I've made a habit of sleeping in the bed with him. I can't pinpoint any difference between those times and the times when I cant do it. The issue certainly isn't my feelings toward him, which are the most loving they've ever been.

I'm looking for either advice on how to reassure him and soothe his ego, or compromises or strategies I could use to make sleeping together viable.

TLDR; I sleep on the couch. It hurts my husband's feelings. What do?