Mothercare have some lovely unisex ones! They have lovely bed socks as well but they are about £14 for two pairs (the jammies not the socks lol). I am going to hold off till next month I think as i'd like a wee christmasy dressing gown too and there doesnt seem to be much choice yet xx
Tesco have lovely penguin, snowman or reindeer girls fleece ones for £6:https://i1.adis.ws/i/tesco/an324346.jpg?$tt_large$ https://i1.adis.ws/i/tesco/an324164.jpg?$tt_large$ https://i1.adis.ws/i/tesco/an324162.jpg?$tt_large$ I can't link to them for some reason but just search for girls pyjamas. They also have boys penguin ones for £6 too. https://i1.adis.ws/i/tesco/am324252.jpg?$tt_large$
Not exactly Christmas but wintery...I just bought DS2 a two pack from Morrisons 'nutmeg' range for £5 with polar bears on. They are very cute xx