I use Dulux paints, so I'd recommend Dulux Easy Care in brilliant white matt. Emulsions are wall paints usually in matt or silk finishes. I've not used eggshell paints, but I think they're suitable for walls and woodwork. This will help explain the different finishes, https://www.dulux.co.uk/en/expert-help/dr-dulux-paint-finishes-explained

Hi! For a north-facing bedroom featuring the Hammond Fjord wardrobe and Morris & Co Golden Lily Slate/Manilla wallpaper, selecting warm, muted tones will complement the cooler light and tie the elements together beautifully. From Farrow & Ball, consider Light Blue or Skylight for soft, harmonious tones that echo the wardrobe while staying fresh and calming. If you’d like more contrast, Pigeon or French Grey adds depth while still blending seamlessly with the wallpaper’s natural palette. For a touch of warmth, Drop Cloth or Stony Ground provides a neutral balance that works well with the creamy undertones in the wallpaper. Alternatively, from Little Greene, Slaked Lime Mid or Celestial Blue are soft choices that will brighten the space, while Grey Stone or Livid bring a contemporary yet cosy depth. Pairing these tones with warm lighting will further balance the cooler northern light, creating a serene and timeless bedroom.

Way more information needed I'm afraid. Pic of room, furniture to be included, natural light, orientation, practicality, etc.

Aw that sounds beautiful, I like Wevet as well. What colour grey did you go fascia’s. I agree using Johnstone we have done that with the hall many thanks Daily xfascia’s