Sleep-in hybrid cars recommendations

Looking to buy our first car before moving to the countryside. Ideally we'd like a hybrid, not too big (cause mountain roads) but roomy enough to sleep in for 2.
Car will be used for daily commuting and for outdoor activities during weekends.
So far Toyota Raize seems like a good fit but the seats don't fold perfectly flat.
Do you guys have any recommendations? Also will take any general advice on sleeping in a car in Japan.
Thanks in advance!

by OldContribution684