The Good Little Mermaid’s Guide to Bedtime by Eija Sumner and Nici Gregory. Published by Tundra in 2024.

From the publisher:
This little mermaid is too FIERCE and SCARY and FEROCIOUS to follow The Good Little Mermaid’s Guide to Bedtime . . . well, except the part about snuggling her shark stuffie. A hilarious picture book for kids ages 3 to 7 who are experts at resisting sleep.

Also illustrated by Nici:
Oh Monty! by Susannah Lloyd
Badgers are GO! by Susannah Lloyd
Where’s Speedy?
Nora and the Map of Mayhem by Joseph Elliott

Nici Gregory’s represented by The Catchpoles.