Make sure your pet doesn't get accustomed to sleeping with you in bed, as that'll take over the space that should be for your partner. It can be cute and cuddly to snuggle up next to your pet, but once they feel how soft your duvet is, they'll likely cry to come back every night, and you won't want to say no to them. "Say goodbye to spooning," Maria said. "Ensuring they sleep on their own will allow you to create distance." Get them a bed they'll love and want to sleep soundly in.