This is the most favorite picture I have of my twin boys (1st set of twins as I have twin girls age 5 now too) from when they were 3 years old 9 years ago. Their beds were positioned as normal about 3 or 4 feet apart and I put them to bed. An hour or so later I came to check on them and found that they had pushed their beds together and were sound asleep holding hands.
Radical Dadding 