The babies may have slept so well on the daytime excursion, due to the background noises :wink: Newborns in the hospital hear low voices, machines humming...machines beeping...phones ringing...and they very happily sleep through it all.
Another thing....my twin grandson's did NOT like to sleep apart...especially the smallest one. They got more rest, gained more weight, and were all over happier sleeping together. Their specialist said that they have a mental as well as a physical connection...studies have shown that they thrive better if they sleep close to each other too :D:D:D
Anyway...enjoy those babies!!! Get pictures of you with them!!!