Fluid World has brokered a deal with Infinity Entertainment which will see the launch of Mr Men Little Miss 3D travel pillows.
The line - which includes Mr Happy, Mr Strong, Mr Bump, Little Miss Giggles, Little Miss Sunshine and Little Miss Princess - is already available in Boots stores, with a branded FSDU.
The products will launch in John Lewis and Argos from the autumn.
The Sanrio-owned characters transform from a soft toy into a bean-filled travel support neck pillow.
"Our range of Mr Men Little Miss reversible travel pillows has has an exceptional reaction at retail," said Jonathan Pearce, MD of Infinity Entertainment. "This is not only because of the unique transforming feature of the productm, from pillow to plush, but because the Mr Men Little Miss brand is iconic and loved by many.
"The characters of the brand are instantly recognisable, fun and take us back to our youth.
"It is my first time working with the Mr Men Little Miss brand and the reaction to the brand and products has been overwhelming - long may it continue."
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