Sleeping through the night

Dear Jonas,

You managed to sleep for 7 hours and went without a feed for 9 hours last night! Hoorah! Well done my boy! Mummy is so pleased that my efforts to sleep train you is working despite you refusing to take naps in the daytime.

Strangely, you have taken a nap of over 4 hours today. I hope this is not something  bad as Mummy is worried you are sick or something.

Love, Mummy.