I left the lights on and took Ben to our room. The doctor had warned us about how it could be dangerous for babies to share a bed with adults. They could suffocate on pillows, overheat under the covers, even get crushed by a sleeping parent rolling in bed. They are fragile creatures. But on that night I couldn’t leave him anywhere else. I spent the night breathing heavily in the dark, sitting in bed, watching over my wife and son in their sleep.