Sleeperoo secured a real, completed investment on Die Höhle der Löwen — Germany's version of Shark Tank — and still ended up filing for insolvency years later. It's a useful reminder that in this format, a closed deal is only the beginning of the actual business risk, not the end of it.
The pitch and the deal
Founder Karen Löhnert pitched sleeperoo, a business built around small, design-focused sleeping cubes — compact, self-contained overnight accommodation units, positioned as a novel alternative to conventional hotel rooms, often placed in unusual or scenic outdoor locations. The concept found a real investor in Dagmar Wöhrl, one of the show's longest-serving panelists, who invested €250,000 for 20% equity in 2018.
That's a genuine, closed transaction — money that actually changed hands, not a televised agreement that quietly evaporated during due diligence, which distinguishes sleeperoo's story from a large share of the collapsed-deal cases we've documented across other Shark Tank and Dragons' Den markets.
The insolvency
Despite the completed investment, sleeperoo was ultimately forced to file for insolvency. The company's insolvency application was filed on February 15, with a court-appointed insolvency administrator taking over the company's affairs by February 27 — a fast-moving formal process under German insolvency law, which typically appoints an administrator quickly once a filing is made, to assess whether a struggling company can be restructured or must be wound down.
According to reporting on the collapse, the immediate trigger involved a key investor failing to meet its ongoing payment obligations to the company, which meant sleeperoo could no longer be confident it could cover its short-term financing needs — a liquidity crunch rather than necessarily a failure of the underlying business concept itself.
Why a real, closed deal still wasn't enough
Sleeperoo's collapse is genuinely instructive precisely because it breaks the pattern that dominates so much Shark Tank and Dragons' Den failure coverage. This wasn't a case of a pitch overselling its traction, or an investor discovering a problem during due diligence and walking away. Wöhrl's €250,000 was real, invested, and presumably put to work building the business. The failure came later, from an ongoing financing dependency that broke down — a different, arguably more common startup risk than the on-air-deal-collapse pattern, and one that applies just as much to companies that never went near a television pitch at all.
Part of a broader, measurable pattern on the German show
Sleeperoo's collapse isn't an outlier — it's part of a documented statistical pattern specific to Die Höhle der Löwen. Research covering the show's first eleven seasons found that 53% of pitched business ideas secured a deal with at least one investor. But startups that closed a deal on the show carried a 2.5% bankruptcy risk within twelve months, roughly double the 1.25% average bankruptcy rate across all German companies generally. Looking further out, researchers found that 42 of the first 372 startups to appear across the show's first six seasons had gone insolvent — a real, substantial failure rate even among companies that successfully secured investment on air.
That elevated risk doesn't necessarily mean Shark Tank-style shows cause failure — pitching on television selects for earlier-stage, higher-risk companies in the first place, the same kind of business that would carry above-average failure risk with or without a televised deal. But it does mean a completed Die Höhle der Löwen deal, unlike what viewers might assume from watching the celebratory moment on air, comes with meaningfully elevated failure odds baked in from the start.
A quick primer on Die Höhle der Löwen
Die Höhle der Löwen — literally "The Lion's Den" — is Germany's adaptation of the Shark Tank/Dragons' Den format, airing on VOX since 2014. Its panel of investors, referred to as "Löwen" (lions) rather than sharks or dragons, has included figures like Dagmar Wöhrl, a former German politician turned investor, and Frank Thelen, a prominent German tech entrepreneur who's become one of the show's most recognizable panelists. The show has built a genuine cultural footprint in Germany comparable to what Shark Tank achieved in the US, complete with its own well-documented track record of both breakout successes and high-profile collapses like sleeperoo's.
What sleeperoo's story adds to the broader picture
Most of Talmyn's Shark Tank and Dragons' Den coverage across other markets has focused on deals that failed to close at all — an agreement made on camera that quietly died during due diligence. Sleeperoo is a useful counterexample precisely because the deal did close, and the money was genuinely invested, and the company still failed years later for entirely separate operational reasons. That distinction matters for anyone trying to draw lessons from these shows: a successfully closed deal reduces one category of risk (the deal evaporating before any money changes hands) without eliminating the much larger, more familiar category of risk every startup faces regardless of how it was funded — running out of cash when financing dependencies break down.
The bottom line
Sleeperoo's arc — a real, closed €250,000 investment from one of the show's most experienced panelists, followed years later by a fast-moving formal insolvency filing — shows that Die Höhle der Löwen's failure risk doesn't end once a deal actually closes. With a documented 2.5% twelve-month bankruptcy rate among funded startups on the show, roughly double Germany's general corporate average, sleeperoo's collapse fits a real, measurable pattern rather than standing as an isolated bad outcome.
See our full roundup of Die Höhle der Löwen's biggest wins and losses for sleeperoo alongside Ankerkraut's €12 million success story.
