Pajama Birthday Cake

birthday cake
The birthday cake has been an integral part of the birthday celebrations in Western cultures since the middle of the 19th century. Certain rituals and traditions, such as singing of birthday songs, associated with birthday cakes are common to many Western cultures.
decorated cake served at a birthday party
A cake made to celebrate and mark the anniversary of a person’s birth. Butter and sponge cakes are traditionally the cake of choice, with a buttercream frosting. Small lit candles are placed on top of the cake for the birthday person to blow out after making a wish.

pajama
a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries
(usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers
Pajamas, also spelled pyjamas (see also spelling differences) can refer to several related types of clothing. The original paijama are loose, lightweight trousers fitted with drawstring waistbands and worn in South and West Asia by both sexes.