Rigid cat window perch for heavier cats

A sagging hammock-style perch is a really common disappointment — they look sturdy in photos but the fabric gives under any cat with real weight behind them, and an 8-year-old American Shorthair is exactly the cat that exposes that weakness. You need a rigid shelf platform, not a sling. Window perches are genuinely one of the best things you can do for an indoor cat — the visual stimulation from birds, passing people, and shifting light makes a real difference to their day. To point you to the right one: roughly how much does your cat weigh, what kind of windows do you have (double-glazed, older single pane, uPVC frames), and is this just for one cat or will others be sharing it?

5.5kg on a double-glazed uPVC surface is a very manageable combination. uPVC gives suction cups a smooth, consistent surface to grip, so you're not fighting any of the tricky variables. My clear recommendation is the K&H Pet Products EZ Mount Kitty Sill. It's a fully rigid MDF-core platform with a washable fleece pad — no flex, no sag — and it mounts entirely via suction cups rated well above what you need. It's designed specifically to replace hammock failures like yours and is widely stocked on Amazon UK. The footprint is generous enough for a cat her size to sprawl comfortably, which matters for an older cat who wants to settle in properly.

Completely understandable wariness. The K&H EZ Mount Kitty Sill uses four large suction cups — two on each side bracket — which distributes the load much more evenly than the two-cup designs most hammock perches rely on. The key maintenance step is cleaning both the cups and the glass with a dry cloth before fitting, and re-pressing them firmly every couple of months. On a clean uPVC double-glazed pane they hold very reliably. At 5.5kg your cat is well within the rated limit, so you have a decent safety margin too.

Yes — placement and initial encouragement make a big difference, especially for an 8-year-old who may be set in her habits. Put it at a window she already gravitates toward rather than one you think is best. Height-wise, position it so she can step onto it from a nearby piece of furniture rather than having to jump up cold; older cats appreciate the easy on-ramp. Sprinkle a tiny pinch of dried catnip on the fleece pad for the first few days, and if there's a bird feeder visible from that window, even better. Most cats convert within a week once they realise the platform is solid underfoot.

Good luck with it — the K&H EZ Mount Kitty Sill is a straightforward upgrade from a hammock and should serve her well. Clean glass, four cups pressed firmly, and a spot she already likes and she'll be watching the world go by in no time.