Ryan Reynolds and his wife, actress Blake Lively, welcomed their first child in January -- and parenthood has certainly been an adjustment for the actor.
In an interview with Jimmy Fallon on The Tonight Show, Reynolds revealed that after only a few weeks he already knows one of his daughter's allergies.
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"Our baby, in particular, is, we think, allergic to sleep," Reynolds told Fallon, who recently welcomed a new child of his own with wife Nancy Juvonen.
"We think that she thinks that she's protecting us from the sleep monsters," Reynolds added of his daughter. "She's like, 'Oh, I gotta keep them up or the sleep monsters will get them."
The 38-year-old actor also revealed the methods he's used to try to get her to go to sleep, but explained that they have a major flaw.
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"The trick I try to use is that Baby Einstein stuff, but for me that's like horse tranquilizer," Reynolds joked. "I could [fall asleep] on a lit stove."
Check out the video below for more on Reynold and Lively's new bundle of joy.