I often sleep very badly. Here I am prowling 2 hours after going to bed.
But put me in the caravan and I sleep fine.
I've just spent a weekend away under canvas in a tiny popup tent, some nights raining, inflatable airbed, and apart from short beer-related walks to the loo, not more than 2 per night, slept like a log.
Back home, own comfy bed - here I am on the prowl.