Your first phone call matters more than your first feed. Ring a veterinarian or an experienced neonatal rescue immediately, say the kitten is newborn and orphaned, and let that call organise everything else; the feeding and warming below simply keep the kitten safe until professional guidance lands. A newborn cannot regulate temperature, cannot toilet unaided and cannot digest while chilled, so the order of operations is fixed: warmth, then feeding, then toileting, repeated around the clock.
Warmth before the first bottle
Set up a small box or carrier in a draught-free corner, lined with soft, clean bedding that has no loose loops tiny claws could catch in. Place a warm water bottle wrapped in a towel, or a covered heat source, under half of the bedding only, so the kitten can crawl toward warmth or away from it; a kitten who cannot move away can overheat, which is as dangerous as chilling. The nest should feel warm, not hot, and the kitten should warm gradually — never blast a cold kitten with rapid heat, and never put a cold kitten to the bottle, because chilled guts cannot process milk and feeding then does harm. Check warmth by touch before every feed: ears and paws should feel warm, and a kitten who still feels cool gets more gentle warming time, not food.
Feeding the orphan safely
Wash your hands before every feed and wash the bottle and teat thoroughly after it, because a newborn immune system has almost no margin for dirty equipment. Use proper kitten milk replacer and nothing else — never cow's milk, which upsets the gut and does not nourish a kitten properly — made up exactly as the label directs, and warmed gently so it feels comfortably warm on your wrist, never hot. Amounts and intervals stay label-directed and vet-confirmed general guidance rather than a schedule anyone should improvise: newborns take small feeds little and often, around the clock, and your vet will confirm the right pattern for this kitten's weight and condition. Position is non-negotiable: the kitten lies belly-down, head level, as if nursing from the mother — never on the back, where milk can enter the lungs. Let the kitten suck at a natural pace, never squeeze the bottle to speed things up, and pause if milk bubbles from the nose or the kitten coughs, then mention it when you speak to the vet. Discard leftover replacer rather than reheating it later.
Toileting, weighing and watching
A mother cat licks her kittens to make them toilet; an orphan needs you to imitate that after every feed. Stroke the belly and the genital area gently with a warm, damp cloth or cotton pad until the kitten urinates and, most days, passes stool, and note the result — a kitten who stops producing either is information your vet needs the same day. Weigh the kitten daily on kitchen scales, at the same time and after toileting, and write the grams down: steady daily gain is the clearest sign the plan is working, while a flat line or a loss is a warning long before the kitten looks different. Keep the nest clean and dry, and keep other pets away from the box.
When to escalate urgently
Treat weakness, a body that will not stay warm, refusal to suck, persistent crying, diarrhoea, a bloated tight belly or no weight gain as urgent vet problems, not wait-and-see problems — newborns fade fast, and a kitten who seemed merely quiet at one feed can be in trouble by the next. Say what you have recorded when you call: temperatures by feel, feed times, toileting results and weights turn a phone call into a clinical picture the vet can act on. If the around-the-clock schedule is genuinely beyond your household, say so honestly and ask about a neonatal rescue placement; handing over early is good care, not failure. Logged in one shared place inside KinsLe, those round-the-clock duties stay visible to everyone helping, and Care Teams turns a frightening first night into a sequence of small, recorded tasks.