There's a reasonable explanation why this mom saw a 'ghost baby' in her sleeping son's crib

Never wake a sleeping baby, even if there is friendly little ghost in bed with him.

One mom got quite the scare when she saw what looked like a "ghost baby" in bed with her son on the baby monitor.

What the "ghost baby" actually turned out to be has everyone laughing- her post on Facebook detailing the incident has been shared more than 290,000 times.

"So last night I was positive there was a ghost baby in the bed with my son," wrote Maritza Elizabeth. "I was so freaked out, I barely slept. I even tried creeping in there with a flashlight while my son was sleeping."

"Well, this morning I go to investigate a bit further. It turns out my husband just forgot to put the mattress protector on when he changed the sheets. I could kill him," she jokes alongside crying-laughing face emojis.

Turns out, there was no "ghost baby," but instead an image of a cute baby on the label of the mattress. The light came through just enough that the image was projected through the sheets, something a mattress protector would typically hide.

Yes, hubby would definitely be in the dog house for that.

Note to self: Always make sure to use a mattress protector. Not only do they help with overnight accidents, but they also prevent your babies from being haunted by ghost babies.