Cat window perch for small flats

Window perches are genuinely one of the best enrichment additions you can make for an indoor cat — birds, movement, passing people, sunlight — it all counts as real mental stimulation, and a good perch makes a meaningful difference to their daily wellbeing. With only one usable window in a studio, making the most of that single spot is everything, so a multi-tier setup is absolutely the right instinct. Before I point you toward something specific: how heavy is your American Curl, what kind of window is it — double-glazed UPVC, sash, something else — and is it just the one cat using this?

Perfect — 4.5kg is well within the safe range for suction-cup perches, and UPVC double glazing is actually the ideal surface for them because it's smooth, non-porous, and holds suction brilliantly as long as you clean the glass first. For a single window in a small space, you want a dedicated multi-tier window perch rather than stacking separate single perches, because the frame is engineered to distribute load across the panes properly. Can I ask one more thing — does your American Curl tend to sprawl out when she rests, or is she more of a curled-up sleeper? That affects whether you need wider platforms or whether narrower hammock-style tiers will suit her fine.

That actually works in your favour — a curler is perfectly happy on a hammock-style tier, which means you can go for a compact multi-level design without needing wide flat shelves, keeping the whole unit tidy against the glass. My recommendation is the K&H Pet Products EZ Mount Window Bed Kitty Sill — specifically the multi-tier version, sometimes listed as the K&H EZ Mount Double Bunk. It mounts entirely on the glass with heavy-duty suction cups rated well above 4.5kg, gives you two stacked platforms so she gets genuine vertical choice, and the hammock fabric is soft enough for a curler to settle into. It's available on Amazon UK, straightforward to fit, and because it's all on the glass rather than requiring a sill or floor anchor, it genuinely costs you zero floor space — which is exactly what you need in a studio.

Completely valid concern, and the answer is almost entirely in the preparation rather than the product. Clean the glass with rubbing alcohol or a streak-free glass cleaner right before you mount it — any grease, dust, or residue is what causes suction cups to fail over time. Press each cup firmly onto the glass, then twist to lock if the design allows it. K&H's cups are notably better quality than budget alternatives, but even the best ones need a clean surface. Once fitted, give it a firm pull-test before she uses it, and re-check the cups every couple of weeks — takes ten seconds. Avoid mounting near a radiator or direct heat source, as warmth degrades suction. Follow those steps and it'll hold reliably.

Great choice for her. She's going to get a lot of use out of it — American Curls are curious, alert cats and having two tiers means she can pick her height depending on mood and light. Enjoy watching her settle in.