pajamas vs pyjamas

Some examples from the web:

• Jack, you desperately need new pajamas.
• Mom has made this pajamas for you
• You can wear anything you want... even your pajamas.
• I packed your pajamas, toothbrush and your picture.
• Let's get in our pajamas and build a blanket fort.
• Boys in undershirts and filthy baseball caps - the girls wearing pajamas and flip-flops.
• He drops the cigarette onto his pajamas.
• Yes. Aunt Josephine told me that we can have a pajamas party.
• My pajamas were in the bedroom, which was occupied.
• And lecturing in front of kids wearing pajamas is borderline degrading.
• The button fell off my pajamas.
• Taggart, it was probably your father in red pajamas.
• The teacher asked who I was making the pajamas for.
• Dale, your pajamas flew out the window.
• For some reason, I'm wearing a leather jacket over my pajamas.
• Can't catch bad guys in pajamas.
• I can't guarantee that the pajamas will be here when you return.
• And he could use some more pajamas.
• This is my last pair of clean pajamas.
• You had wild-looking pajamas and orange monkey slippers.

Some examples from the web:

• Don't worry about your pyjamas, señor.
• My pyjamas are a different colour.
• Like the pyjamas, all secondhand.
• I will need a set of hostess pyjamas.
• For Serena to sleep in her own bed, possibly wearing pyjamas.
• Keep your mind off the poetry and on the pyjamas.
• Evan has his footy pyjamas, a new diaper and Winnie the Pooh.
• I might as well be in pyjamas Watching Monster Trucks on pay-per-view right now.
• I wasn't expecting flannel pyjamas, but still.
• White pyjamas... with a little mouse embroidered on the front.
• I'm sorry to meet you in my pyjamas.
• You traded rags for silk pyjamas?
• Your Playboy pyjamas with the bunnies.
• Looks like high-explosive pyjamas to me.
• You'll find some pyjamas in that room.
• Don't come home in those pyjamas.
• Have you brought his special pyjamas?
• A spark of static electricity from his pyjamas set it off.
• And then I got into my pyjamas.
• I'm in a strange man's apartment in my T-shirt and pyjamas.