 Item █ SCP-799 Object Class Euclid Special Containment Procedures Each specimen of SCP-799s be kept in a separate biocontainment cell at Biosite-66. 100 grams of dry brine shrimp is to be sprinkled over each object monthly. If this is not available, 500 grams of household dust will suffice. It has been determined that Biosite-66 maintenance staff removes significantly more than the necessary quantity of dust from the D-class dorms monthly. This dust is to be collected in the usual dust-pan bags and delivered if necessary. No more than 500 grams per specimen is necessary or advised. Should any throw pillows or similar objects appear, they are to be placed in separate containment immediately and to presiding researcher notified. The objects are not to be removed from the containment except as authorized for testing. Members of SCP-799 vary in size, shape, and superficial appearance, but always retain the appearance of a knit or woven item of bedding made from an unfamiliar but very soft natural fiber, resembling high-quality merino wool blend but identified as █████. An individual's mass ranges from approximately 0.5 to 6 kilograms and does not change except through ingestion and excretion, so any immediate increase in area comes at the expense of thickness and fabric weight. The blanket retains heat unusually well. Its coloration and markings are highly variable. It tends strongly towards pastel hues and patterns resembling stylized, neotinous animals, particularly when its mass is less than about 2 kilograms. The items are living organisms, most similar in physiology and structure to █████████. Although alternate hypotheses suggest fungal origins, full notes may be found in document 799-1a. Although well-insulated, they are apparently cold-blooded, hence their adaptations for use by intelligent hemiotherms. Instances of SCP-799 are usually torpid and incapable of movement, requiring little nutrition. What they do need, they draw from the organic detritus present in household dust. One specimen is believed to have survived for years on end, stored in a damp, ill-maintained attic, living on heat from the house below and detritus from the wooden raptors above. Excretion is minimal. Excretia resemble tiny, very dry ███████. It is forced to survive for long periods without sufficient nutrition, though. SCP-799 is capable of metamorphosing into a predatory form. The resultant structural changes are invisible to the casual observer. They consist of modifications to the digestive tract and feeding orifices. The latter shift from minute, dispersed filter-feeding mouths into a single large mouth, lined with ███████. The organism also develops contractile tissues similar to animal muscle. Once its metamorphosis is complete, the SCP-799 individual waits for a large animal to wrap up in it and become quiescent. Sleep is common before opening its mouths, tearing off a few kilograms of biomass and consuming it. The biomass is apparently reduced to thin slurry almost immediately, as even seconds after feeding there is no visible bulge in the blanket. The mount is completely resorbed 10 minutes after feeding. At this point, no evidence of the blanket's nature is available except by x-ray or by observing the sudden increase in mass. By 40 minutes after feeding, the entire carnivorous digestive system is resorbed and the organism returned to filter-feeding phase. In carnivorous phase, the organism will not feed on inanimate objects or cold-blooded animals. Dr. ████████ hypothesizes that its senses are entirely limited to touch and heat, and that it does not recognize cooler objects as organic. SCP-799 reproduces by budding. When an individual's mass reaches a certain minimum, very slowly except in case of carnivory, it takes on a more quilt-like appearance. Gradually over the course of several weeks, the quilt squares along one margin puff up and slot thought to become several small doilies or throw pillows. The offspring are cloned with the individual, identical to it in every way, and will grow to a similar size and reproduce and turn given suitable conditions. The first of the Foundation's captive SCP-799 population ██████ individuals at the time of writing was retrieved on ██████ from ██████, where it had been residing in the home of notorious germaphobe ██████ after it metamorphised and apparently fed on its infant granddaughter. A standard biological sweep revealed the blanket nature, and it was taken into containment without resistance. It is not known how many instances of SCP-799 exist outside Foundation containment, as they are very difficult to detect except by genetic testing. Extrapolation of growth rates and reproductive weight from the specimens in containment suggests that a filter-feeding SCP-799 organism reproduces once every 50 to 60 years. Note, any wild blanket should be destroyed upon detection. This species is fascinating, but we have a large population in containment and the wild ones pose too much risk of public exposure.