Armchair turned bed for kids?

[Strawberrylemonades]

I'm searching for an armchair for my DS (7) single bedroom that he can use as a sofa/armchair bed for future sleepovers but really struggling to find one. Any tips on where to find one for this purpose? Ideally it would look good as a fairly small armchair (max width 90cm to fit in an alcove in his single bedroom).

We got one from The Range website, they do all kinds of different sizes but we got a 90cm wide one. It's really well-made and was fairly cheap too. I'll see if I can find a direct link, you have to trawl through a lot of stuff on their site to find anything.

Here's ours: https://www.therange.co.uk/furniture/sofas-and-chairs/sofas/navy-blue-single-3ft-luxury-futon-sofa-bed#7354986

Thanks @JaneWithTheUntidyHouse . Is it comfortable to sleep on? He occassionally has sleepovers with his sister/in each other's rooms so it'd be used a good few times a month and would need to be comfy as a bed.

@Strawberrylemonades I've slept on it a few times and found it comfortable enough. DS went through a phase of only sleeping on it for a couple of months when we moved house because he had a new high bed and still wanted someone to cuddle him to sleep. It's not a super-soft mattress but I didn't wake in the night with aches and pains at all (and I'm usually fairly fussy on mattresses).

Wayfair, Dunelm, Dusk, Ikea.