I never undertood this part, why Erma forced Alfon to sleep in the ground at first? Maybe for cultural reasons?
Very restless sleeper and not used to sharing a bed. My Wife and I took a while to get used to each other and didn't/couldn't always share the bed.
Puts me in mind of the way spousal sleeping arrangements were shown in films & TV up until the mid-1960's: husband & wife slept in separate beds.
Interestingly, in various times and places, spouses commonly sleeping together was not always the norm. The TV version of separate beds was a bit silly, but not totally unheard of, and even separate bedrooms for those who could afford such could be a thing.