“Bed-buddies”
That was a term my dad liked to use. Did he have a song or phrase to go with it? I can’t remember.
Charlotte has been reading stories to Ila at night. Ila really loves it and doesn’t complain about going to bed as long as she can be in Charlotte’s bed (which by the way has a bed tent on it). They have slept together in Charlotte’s bed for the last 4 nights and tonight Charlotte asked us if Ila could just sleep in her bed every night. 
Zach and I have been a little torn on whether we should allow them to sleep in the same bed because they keep each other up. In the end, at least for now, we are letting them sleep together because it gives Charlotte great practice reading and it strengthens their friendship. It’s important to me that my kids like each other and value their siblings as friends. 
Their reading together has extended past bedtime and I’ve found them reading together several times during the day over the weekend:
Nicole tried sleeping in the tent with them one night, but it didn’t last very long.
He called them “Snuggle-buggle bed buddies” I don’t think there was a song.